Quadrangular receptacle structures



July 12, 1960 F. MUHLHOFF QUADRANGULAR RECEPTACLE STRUCTURES "Filed Nov. 22, 1957 to the present invention; and

2,944,714 QUADRANGULAR RECEPTACLE STRUCTURES Friedrich Miihlholf, Koln-Bickendorf,-,Germany, -assignor to Mauser Kommandit-Gesellschaft, Koln-Ehrenfeld, Germany Filed Nov. 22, 1957, Ser. No. 698,309y Claims priority, application Germany Mar. 29, 1957 z claims. (cl. 229-55) withA the result thattransportationand storage costsV areA relatively high.

A primary object of the present `invention is to pro-1 vide means facilitating the manufacture of sturdy paper- .Y or cardboard containers which are rectangular or lquadrangular in cross-section and thereby 'obviate the space loss resulting from the use 'of circular, containers.

Another object of the present invention is to provide a paperboard or like container of theaforesaid type which is so manufactured that it can assume any vdesired wall thickness and is of a rectangularcross-section. p Another object of the invention is to provide means affording a relatively simple process for creating or winding the container body, abutments or indentations thereof for mounting a top closure'ring and a bottom closure member.

Yet a further object of the present invention resides in the provision of means conducive to the construction of a very ecient container body presenting a shell or jacket of lwound paper or like cellulosic material, which yshell may be simultaneously provided during its manufacturing stage with peripheral 'recess or recesses, edges, flanges and like reinforcement parts, easily and readily incorporatedk in the shell or jacket. Y

Still another object of the present invention is to provide means facilitating anchorage or connection of hoops or similar ring-shapedelements of steel ,or like metal with the aforesaid shell or jacket, which may be made of wood veneer, cardboard, light-weight metal, plastic orV drawingwhich illustrates the presently preferred embodiment of the invention.

In the drawing: Fig. 1 is a vertical cross-section of arcontainer pursuant Fig. 2 is a top plan view ofthe container seen in Fig. 1.

However, circula-r containers United States Patent coreto provide. the desiredthickness and rectangular l crosssection for the container and to obviate the necessityrfor any body seam. At the upper end thereof, the body 1 terminates injan inwardly curved marginal portion'S 'which formsga'bead or rim` at Y the upper end of f the body 1. Adjacent the bead and below the latter, the

body is provided with a peripheral indentation or groove V8 formed by bending'or folding the body material inwardly upon itself, as best illustrated in Fig. 1. Immediatelyabove the bottom rim 8, the body is provided with a second peripheral groove or indentation 9, the lfunction of which isV hereinafter described in detail. It will be.

readilyapparent to those skilled in the art that the indentations 2 and 9 may be formed during the winding of the body-forming sheet material about a previously mentioned rectangular form (not illustrated).

A reinforcingl ring 11, kpreferably Iformed of steel or other suitable metal, encompasses the upper end of the l body 1. More specifically, the ring 11 is complementary to both the upper rim 3 and the upper indentation 2. The

ring 11 is curled inwardly, as at 11a, to completely enclose the bead 3, and is inwardly bent or indented, as at Referring now to the drawing in detail, there is shown.

a container or receptacle 20, which is rectangularin cross-section and which isv especially well adapted .for transporting or storing the contents thereof. The tubu- 11b, A"so as to nestY within the upperperipheral body. in-

"identation 2. A packing ring 4, .of suitable resilient ma- "terial, such as plastic or plasticcomposition, overles the ring I1, at the curled portion 11a thereof.

A dished cover 5, preferably'made of steel, other sheet Y met-a1, wood, paperboard, or like suitable material, closes The cover is secured in position by a tension ring 6,

which serves topress the cover flange 5a downwardly toward the body rim 3. It will be noted that the tension ring also encompasses the upper portion of the securing ring 11, the bottom 6a of the tensionring extending into the body indentation 2 and engaging under the overlying portion of the ring 11. Consequently, the tension ring 6 serves to clamp the cover 5 in position against the packing ring 4'.A

'I'he lower end of the receptacle body 1 is closed by a bottom member 7 preferably formed of steel or other suitable sheet metal. The member 7 is bent back upon itself and then curved upwardly to for-m the peripheral recess-defining portion 7a which encompasses the doubledup bottom rim 8 of the body 1. The marginal edge of the bottom 7 is' defined by a curled extension portion 7b integral with bottom 7, said extension portion 7b being nested within the Ylower body indentation 9. A nonmetallic dise 16, preferably formed of paperboard or wood, is forced into position and covers the inner surface bility to the receptacle 20Y which makes it possible tov utilize -a relatively thin wall thickness forlth'e body 1 and thus savematerial.A The wall thickness can vary with v the size of the container.

lar or hollow body 1 of the container is wound or formed As used in the annexed claims, the term paperboard comprehends generallylkraft paper or cellulosic material.

Various changes and modifications may be made without departing from the spirit and scope of the present invention and it is intended that such obvious changes and modifications be embraced by the annexed claims.

Y: Patented July l2, 1960 3 Having thus described the invention, what is claimed asy new and desired to be secured by Letters Patent, is:

1. A receptacle comprising* a hollow body part having an upper and lower end and formed of paperboard, a s't inwardly eitending qgeripheral indentation dened adjantthe ripper e'nd of said body part, a second in-V wrdly' eiitending peripheral indentation denne-d adjacent theY lwe'r end of said body part, said body part having -a rim located above said first indentation to facilitate montig of a cover, said body part being provided with a base contigons to said second indentation and located tlierebelow,` said body 'p'rt being rectangular in cross section, a cover securing tension member overlying said upper end and sb'pe'd for retaininent in said rst indentation; vei' for' engaging' Said upper end and said tension member, a reinforcing member interposed between said eoer and said ripper end and encompassing the latter and extending into said first indentation for engagement by said tension member; when applied to Said Cover, -a bottom closure eiitendiiig`- across and engaged by said base, said bottom closre including 4a metallic member having an extension portion integral therewith and encompassing said base to reinforce the latters said extension portion projecting into and being retained in said second indentation, saidtmetallic member completely closing said lower end, and a non-metallic Vdisc overlying said metallic member and engaged between the latter and said second indentation. Y

2. A receptacle according to claim 1, said base including an inwardly extending bottom rim below and spaced from said second indentation, said disk and said metallie member being received and held between said bottom rim and said second indentation.

References Cited in the le of this patent UNTEB STATES PATENTS Punte Dec. 18, 2,727,673 Bergstrom Dec. 20, 1955 2,775,384 Bergstrom Dec. 25, 1956 21,794,584 Geist .,June 4, 1957 21,884,176 Carpenter et al. n nn Apr. 28,y 1959 

